Cinnamon essential oil

Cinnamon is a tropical evergreen tree growing to a height of 6–9 meters. Its use dates back to ancient times; it originates from East India and southern China, and was brought to Europe by Arab traders. It is one of the oldest known spices sought by overseas expeditions in the 15th to 17th centuries as protection against the plague. In the past, people believed that if cinnamon was missing from a remedy, it was not complete. The essential oil is obtained by steam distillation from the tree bark, twigs, and leaves; the oil is dark yellow-brown in color. This natural extract from the leaves of Ceylon cinnamon is rich in essential oils such as cinnamaldehyde, which is responsible for its characteristic properties. In modern cosmetics, it is used as a bioactive ingredient in low concentrations for its antimicrobial benefits, without synthetic origin.

Cinnamon essential oil acts primarily as an antibacterial, antifungal, and anti-inflammatory agent, thereby restoring the skin barrier and protecting against infections. It has strong antimicrobial effects that destroy bacteria such as E. coli and yeasts such as Candida albicans, and supports healing and disinfection of the skin. As an antioxidant, it fights free radicals, while its anti-inflammatory properties soothe irritation. In low concentrations of 0.1–1% in cosmetics, it increases blood circulation, exfoliates dead cells, and soothes problematic skin, without the risk of irritation when properly diluted.

It is especially recommended for acne-prone, oily, and problematic skin, where it fights bacteria that cause acne. It is also suitable for dry, flaky skin, where it restores softness and suppleness, or for mature skin thanks to its support of collagen. For sensitive skin, use cautiously in diluted form, ideally in combination with honey or oil. Avoid use in case of allergy to essential oils or open wounds due to its strong effects.

A study published in the Journal of Medicinal Food (2010) showed that cinnamon extract inhibited the growth of Candida albicans by 80% at a concentration of 0.5% within 24 hours, confirming its antifungal effects on the skin. Further research in the International Journal of Food Microbiology showed that cinnamon oil reduced the population of E. coli by 99.9% at a concentration of 0.1% after 1 hour of exposure, supporting its antibacterial use in cosmetics. A clinical study in Phytotherapy Research (2009) confirmed that cinnamon extract at a 1% concentration reduced inflammatory markers in patients with acne by 45% after 4 weeks of application.